Washer.



No. 777,192. PATENTED DEG. 13, 1904.

C. G. ETTE.

WASHER.

APYLIUAIION FILED SEPT. 12, 1904.

N0 MODEL.

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Ten "STATES Patented December 13, 1901i.

Partnr WASHER..

SPECIFICATION forming part of Letters Patent No. 777,192, dated December13, 1904. Application filed September l2, 1904. Serial No. 224,159. (Nomodel.)

To LH whom t may concern.'

Be it known that I, CHARLES G. Erre,

citizen of the United States, residing' at St. Louis, Missouri, haveinvented a certain new and useful Improvement in Washers, of which thefollowing is a full, clear, and exact description, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being' had tothe accompanying drawings, forming part ofthis specification, in which Figure l is a view, partly in section,showing' my invention applied. Fig. 2 is a top plan view oi' the washerapplied. Fig. 3 is a top i plan view of the washer detached. Fig. a is across-sectional view of the washer, and Fie'. 5 is a bottom plan viewoi' the washer.

This invention relates to improvements in washers, and more particularlyto washers used in connection with bolts or tie-rods e1nployed instructures designed to withstand heavy strains, such as bridges, roots,mines, and the like.

One of the objects of the present invention is to provide a washer whichwill be durable, light, and of suificient strength to withstand strainsto which an article of this class is subjected and having provision forlocking the nut on its bolt or rod to prevent turning thereof.

Another object of the invention is to provide a washer which will becomparatively thin in cross-section and which may be made as a malleablecasting possessing' the maximum amountoi' strength with the minimumamount of weight, said washer being' provided with a .keyhole-openinghaving a flange surrounding the opening, so that a suitable nail or keycan be inserted in the constricted portion of the opening' to preventturning of the nut on the bolt.

Referringnow to the drawings, 1 designates the outer face-web, abase-web 2 being spaced from and in a parallel plane with relation tothe face-web and connected by a connecting'- web 3. The face-web 1 isprovided with a keyhole-shaped opening having a relatively large portion4L for the reception of the bolt or tie-rod and a relatively eonstrietedportion 5 for the reception of the key. The opening' 4. is concentricwith the Yface-web 1, and the constricted portion or slot 5, whichcommuni cates with the enlarged portion (t of the opening, extends fromthe edge portion 4 to a point slightly beyond the periphery of the web1, or, in other words, the length ci' the constricted portion 5 of theopening' is in excess of the distance between the edge of the cnlargedportion t and the periphery et the web 1.

In order tobraee the iaceweb 1 and provide a maximum strength :for thewasher, l have arranged on the under hollow side thereof anapproximately keyhole-shaped llangc 6, which surrounds the enlargedportion et and the eonstrictcd portion 5 of the opening. Theconfiguration ot this i'lange is such that the portion oi: the web 1surroiunlingthc opening' is ciiiciently reinforced, so that the web willin no wise be weakened on account oit the shape of the opening'. lfifdesired, the circular portion 7 ot' the flange b may be reinforced andconnected to the connecting-weh 3 by the radial ribs 8. Under certainconditions l may also desire to further reinforce the webs of the washerby means oi: the outer ribs 9, which are radially disposed and instaggered relation with the ribs 8.

It will be observed that all oi." the parts oi" i this washer are ofsubstantially the same thickness throughout, which enables the eastingto be easily annealed, thus greatly adding' to its durability andstrength.

In applying the washer the threaded end ot the tie-rod or bolt isprojected through the portion 1 of the opening', and after the nut isapplied a suitable key 10, such asa nail or other suitable implement,can be driven through the eonstrieted portion 5 ot' the opening, so asto cngag'e the side of the nut and prevent its turning'. The length ofthe portion 5 of the opening' insures considerable latitude in placing'the key in the best position for preventing' the movement oll the nut,and inasmuch as the outer end of the portion 5 projects slightly beyondthe periphery ol the web 1 the key may be bent beyond the edge of thenut, if desired, for obvious reasons.

Attention is particularly directed to the manner in which the opening'is made in the IOO washer and the eiiicient manner in which it isreinforced, so that any liability of the web portion l being sprung dueto the pressure caused by tightening the nut is avoided. The iiangedportion 6 of the keyhole-shaped slot which projects from the smallerportion of said slot serves as a guide for the key l0, so that it willbe directed straight into the wood, whereby it may be removed ifoccasion should demand. This guiding' action is due to the fact that theinner edge of the flange 6, surrounding the edge of the keyhole-shapedopening, is iiush with the base-web. So the iange 6 serves a dualpurpose, in that it prevents springing of the web portion l as well asserving as a guide for the key.

Having thus described the invention, what is claimed as new, and desiredto be secured by Letters Patent, is-

l. A washer having a face-web, a base-web, a web connecting the face-weband the baseweb, the face-web being provided with a keyhole-shapedopening, and a flange surrounding the edge of the opening, the inneredge of said flange being flush with the base-web; substantially asdescribed.

2. A washer comprising an outer face-web, a base-web spaced therefrom, aconnectingweb for connecting the face-web and base-web, an approximatelykeyhole-shaped opening in the face-web, and an inner iiange surroundingthe edge of the opening and conforming to the shape thereof, the inneredge of said liange being iiush with the base-web; substantially asdescribed. p

3. A washer having a keyhole-shaped opening with a flange entirelysurrounding the opening and projecting at right angles thereto, theinner edge of said iiange being flush with the base-web; substantiallyas described.

4. A washer comprising a base-web, a faceweb of less diameter than thebase-web and connected thereto, an opening in the face-web having varelatively large portion and a relatively constricted portion, and areinforcingflange surrounding the edges of the relatively large portionand relatively constricted portion, the inner edge of said flange beingflush with the base-web; substantially as described.

5. A washer comprising a malleable casting of the same thicknessthroughout and having two webs connected together in one of which is anapproximately keyhole-shaped opening, and a reinforcing-flange entirelysurrounding the opening and extending to a point in the same plane asthe plane of the other web, the inner edge of said iiange being flushwith the base-web; substantially as described.

6. A washer consisting of a malleable casting comprising an outerface-web and an inner base-web spaced apart, and a web connecting thetwo, the face-web having an approximately keyhole-shaped opening, and aiiange surrounding the opening and of the same depth as the depth of theconnecting-web; substantially as described.

7; A washer comprising' an outer face-web, a connected base-web, theouter face-web having an approximately keyhole-shaped opening, theconstricted portion of which extends slightly beyond the periphery ofthe outer face-web, and an edge Hange entirely surrounding the opening;substantially as described.

8. A malleable washer comprising an outer face-web, an inner base-web, aweb connecting the outer face-web and inner base-web, the outer face-webhaving an approximately keyhole-shaped opening, a reinforcing edgeflange entirely surrounding the keyholeshaped opening, and reinforcingribs connected to the reinforcing-flange and to the connecting-web forthe outer face-web and inner base-web; substantially as described.

9. A washer having a face-web, a base-web, a web connecting the face-weband base-web, the face-web being provided with a keyholeshaped opening,a flange surrounding the edge of the opening, said washer beingconstructed of non-yielding material; substantially as described. l

In testimony whereof I hereunto aiiix my signature, in the presence oftwo witnesses, this 9th day of September, 1904.

CHARLES Gr. ETTE.

Witnesses:

B. F. FUNK, GoRA BADGER.

